$${\mathtt{8}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{2}}}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{3}}$$
8 - (1/2)x = 3
Subtract 8 from both sides
-(1/2)x = -5 multiply both sides by -2
x = 10
Subtract 6 from each side.
8 - 8 - 1/2x + -5
Multiply each side by -2 to eliminate the -1/2x + -2 * -5 + 10
+277 
